This is a new and extensively updated edition of one of leading and authoritive books on the subject of IT costs and benefits. Since it was first published in the early 1990s, this book has established itself as the most comprehensive and complete approach to understanding the economics of how information is used to boost the efficiency or effectiveness of companies. The ideas in this book are used extensively in business, and the book is widely adopted and recommended at leading business schools around the world. This book covers a wide spectrum of IT cost and benefit solutions, ranging from business case accounting and user satisfaction studies right through to the business processes which need to be in place in order to ensure the effective measurement and management of IT costs and benefits. This book takes you through a basic understanding of the issues involved and onto the detail of how to perform the techniques required to measure and thus mange IT costs and benefits. ...